GTR Home > Conditions/Phenotypes > Gillespie syndrome


Gillespie syndrome is usually diagnosed in the first year of life by the presence of fixed dilated pupils in a hypotonic infant. Affected individuals have a characteristic form of iris hypoplasia in which the pupillary border of the iris exhibits a scalloped or 'festooned' edge, with iris strands extending onto the anterior lens surface at regular intervals. The key extraocular features of Gillespie syndrome are congenital hypotonia, progressive cerebellar hypoplasia, and ataxia, as well as variable cognitive impairment that is usually mild (summary by Gerber et al., 2016 and McEntagart et al., 2016). [from OMIM]

Available tests

31 tests are in the database for this condition.

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Genes See tests for all associated and related genes

  • Also known as: ACV, CLA4, INSP3R1, IP3R, IP3R1, PPP1R94, SCA15, SCA16, SCA29, ITPR1
    Summary: inositol 1,4,5-trisphosphate receptor type 1

Clinical features


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